diff --git a/matlab/examples/VisualISAMDemo.m b/matlab/examples/VisualISAMDemo.m
index 00518293a..813d6d2e1 100644
--- a/matlab/examples/VisualISAMDemo.m
+++ b/matlab/examples/VisualISAMDemo.m
@@ -3,7 +3,7 @@
 
 % Make sure global variables are visible on command prompt
 % so you can examine how they change as you step through
-global frame_i data noiseModels isam result options
+global options truth data noiseModels isam result frame_i
 
 % Start GUI
 VisualISAM_gui
\ No newline at end of file